DZRB (738 AM), on-air as Radyo Pilipinas (RP1), is a radio station owned and operated by the Philippine Broadcasting Service, an attached agency under the Office of the Press Secretary. It serves as the flagship station of the Radyo Pilipinas network. The station's studios are located at the 4/F, PIA/Media Center Building, Visayas Ave., Brgy. Vasra, Diliman, Quezon City, and its transmitter is located at Brgy. Marulas, Valenzuela City. The station operates Mondays through Fridays from 6:00 AM to 9:00 PM and Saturdays & Sundays from 6:00 AM to 8:00 PM.

DZRB (Radyo Pilipinas 1)
Broadcast areaMega Manila and surrounding areas
Frequency738 kHz
BrandingRadyo Pilipinas 738
FormatNews, Public Affairs, Talk, Government Radio
NetworkRadyo Pilipinas
Radio Television Malacañang
OwnerPhilippine Broadcasting Service
DZSR Radyo Pilipinas 2 918, DZRM 1278, 87.5 FM1, 104.3 FM2, Radyo Pilipinas Worldwide, PTV 4 (television format)
First air date
May 1, 1933; 89 years ago (1933-05-01)
Former call signs
KZSO (1933-1944)
KZFM (1944-1947)
DZFM (1947-1987)
Former frequencies
710 kHz (1933-1978)
918 kHz (1978-1995)
Call sign meaning
Radyo ng Bayan (former branding)
Technical information
Licensing authority
Power50,000 watts
WebcastDZRB Radyo Pilipinas 1 LIVE Audio
Listen Live via Streema
Listen live (via TuneIn)

Established on May 8, 1933, DZRB is the first radio station in the Philippines before the launch of DZRH.


On May 8, 1933, the United States-sponsored Insular Government established and operated radio station KZSO in the Philippines on the frequency of 710 kilohertz with a power of 10,000 watts through the United States Information Service. In 1944, the callsign was change to KZFM, named after Frederick Marquardt.[1]

In September 1946, two months after the Philippines became an independent country from the US, KZFM was turned over to the Philippine government. With the transfer, the Philippine Broadcasting Service was born (the second broadcasting organization in the Philippines after Metropolitan Broadcasting Company).[2]

The station was first operated by the Department of Foreign Affairs until it was transferred to the Radio Broadcasting Board (RBB) which was created by President Manuel Quezon on September 3, 1937. Meanwhile, in the same year, an international telecommunications conference in Atlantic City, New Jersey, reassigned the letter "D" to replace the former "K" as the initial call letter for all radio stations in the Philippines. In January 1942, the RBB was abolished to give way to the establishment of the Philippine Information Council (PIC) which then assumed the function of the RBB, including the operation of DZFM. In turn, the PIC was abolished on July 1, 1952, and since then, until the creation of the Department of Public Information (DPI) in 1959, DZFM and the Philippine Broadcasting Service (PBS) had been operated under the Office of the President.[3]

During Martial Law, the Bureau of Broadcasts took over the station and became DPI Radio 1 / MPI Radio 1. In November 1978, due to the switch of the Philippine AM dial from the NARBA-mandated 10 kHz spacing to the 9 kHz rule implemented by the Geneva Frequency Plan of 1975, the station's frequency was transferred from 710 kHz to 918 kHz.[4]

In 1986 (after the EDSA Revolution), DZFM returned to its ownership by the establishment of the Bureau of Broadcast Services via the reinstated PBS.

Logo of Radyo ng Bayan from 2013 to 2017

The station would later be reformatted as Sports Radio (the predecessor of Radyo Pilipinas 2).

On January 2, 1995, Presidential Order No. 293 ordered the transfer of Sports Radio to 918 kHz, which led to the birth of the government's flagship station: Radyo ng Bayan (People's Radio) and it also transferred to 738 kHz frequency.[5]

During his first State of the Nation Address, then-President Rodrigo Duterte announced he would support a law merging PBS with its TV counterpart, People's Television Network, into the "People's Broadcasting Corporation (PBC)".[citation needed]

PBS announced that Radyo ng Bayan & its provincial AM stations will undergo a major rebranding, merging with the "Radyo Pilipinas" brand by June 5, 2017.[6] It was followed by the launching of Radyo Pilipinas Dos 918 kHz on September 18, 2017. Radyo Pilipinas's overseas counterpart (DZRP), which originally used the brand since the 1990s, remained on air but added "Worldwide" to avert confusion.

On May 5, 2018, Radyo Pilipinas' "TeleRadyo"-formatted video streaming channel began its simulcast over People's Television Network (PTV) nationwide and also streamed live via PTV's official Facebook account, with programs such as Cabinet Report sa TeleRadyo (airing every Friday) and Tutok Erwin Tulfo (airing from Mondays to Fridays). However, a few weeks later, both programs were cancelled in favor of infomercial programming as a preparation for the launch of Chinese TV programs on PTV until it was eventually cancelled in 2019.


As the government's flagship radio station, it serves as a medium of development communication, a conduit between the government and the people, aiming to mobilize all sectors of society towards development and nationalism. Live government news is aired here.

Notable personalitiesEdit


See alsoEdit


  1. ^ Broadcast Media in ASEAN. ASEAN Committee on Culture and Information. 2002. p. 56. ISBN 9789810467418. Retrieved August 26, 2020 – via Google Books.
  2. ^ Jacobini, H. (1956). "Governmental Services in the Philippines: Issue 18". Institute of Public Administration. pp. 152, 566. Retrieved August 26, 2020 – via Google Books.
  3. ^ Tuazon, Ramon (April 30, 2015). "Government Media: Rewriting Their Image and Role". National Commission for Culture and the Arts. Retrieved April 14, 2017.
  4. ^ Aniceto, Ben (2007). Stay Tuned: The Golden Years of Philippine Radio. University of Michigan Press. p. 267. ISBN 9789719401407. Retrieved August 26, 2020 – via Google Books.
  5. ^ Terrado, Reuben (May 15, 2016). "DZSR radio stays relevant in changing times by being PH sport's link to masses". Sports Interactive Network Philippines. Retrieved May 16, 2016.
  6. ^ "PCOO E-Brochure" (PDF). Presidential Communications Operations Office. Archived from the original (PDF) on March 7, 2019. Retrieved June 26, 2017.

External linksEdit